JINAN, Jan. 9 (Xinhuanet) -- As the 60-kilometer-long pollution slick on the Yellow River is moving further downstream, the government of east China's Shandong Province lifted warning early Monday at two monitoring points bordering Shandong and Henan provinces.

The water quality at Xiezhai and Liuzhuang points met
safety standards at 2:00 a.m. Monday. The density of diesel oil has dropped to
no more than 0.05 mg per liter, which means the pollution slick had left the
area bordering Henan and Shandong provinces and moved downstream.

An emergency inspection team sent by the provincial
environment protection bureau has stepped up monitoring at Sunkou, a downstream
monitoring station in the city of Jining, said a spokesman with Shandong
provincial government.

The provincial government urged all riverside cities
to start round-the-clock monitoring on the water quality two to three hours
before the pollution slick arrives.

China's second longest waterway was polluted by a
diesel oil leakage at around 10:00 a.m. Thursday at the No. 2 Power Plant in
Gongyi, a city in central Henan Province.

Investigation shows the diesel oil pipe broke due to
frost and about 12 tons of diesel oil flowed out of a tank, including six tons
into Yiluo River, a tributary of the Yellow River.

The pollution spill, about 60 kilometers long,
entered Shandong Province Saturday afternoon. The provincial government
instantly shut down 63 water supply points along the river to ensure drinking
water safety. Enditem